SOLAR SYSTEM

Detailed explanation-1: -Interplanetary vehicles mostly use chemical rockets as well, although a few have used ion thrusters and Hall-effect thrusters (two different types of electric propulsion) to great success.

Detailed explanation-2: -Description. The Sputnik 1 spacecraft was the first artificial satellite successfully placed in orbit around the Earth and was launched from Baikonur Cosmodrome at Tyuratam (370 km southwest of the small town of Baikonur) in Kazakhstan, then part of the former Soviet Union.

Detailed explanation-3: -NASA uses rockets and spacecraft to send humans into space. Some spacecraft go where humans cannot travel.

Detailed explanation-4: -The Space Shuttle Main Engines The Main Engine weighs approximately 7, 000. Propelled by liquid hydrogen (fuel) and liquid oxygen (oxi-dizer), the engines operate during the entire eight-and-one-half-min-ute ride to orbit.

Detailed explanation-5: -A spacecraft leaving the surface of Earth, for example, needs to be going about 11 kilometers (7 miles) per second, or over 40, 000 kilometers per hour (25, 000 miles per hour), to enter orbit. Achieving escape velocity is one of the biggest challenges facing space travel.